Periscope(n.) A general or comprehensive view.
Periscope(n.) an optical instrument of tubular shape containing an arrangement of lenses and mirrors (or prisms), allowing a person to observe a field of view otherwise obstructed, as beyond an obstructing object or (as in submarines) above the surface of the water.
Periscopic(a.) Viewing all around, or on all sides.
Periscopic(a.) of or relating to a periscope{2}.
Words within periscopism